/*
 * Copyright (C) 2013, Pavel Samko <bulldozerbsg@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the "Pavel Samko" nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 */

#pragma once

#ifndef VFSFORMAT_H
#define VFSFORMAT_H

#include <stdint.h>

#define VIRTFS_MAGIC_DATA "VFS"
#define VIRTFS_MAGIC_SIZE 4

// format ver 1
#define VIRTFS_NAME_SIZE 256

// compress format
#define VIRTFS_COMPRESS_NONE 0
#define VIRTFS_COMPRESS_LZMA 1

// crypt format
#define VIRTFS_CRYPT_NONE 0
#define VIRTFS_CRYPT_TEA 1

#pragma pack(push, 1)
typedef struct VIRTFS_MAGIC
{
	char m_magic[VIRTFS_MAGIC_SIZE];
} VIRTFS_MAGIC;

typedef struct VIRTFS_HEADER
{
	VIRTFS_MAGIC m_magic;
	uint8_t m_version;
	uint16_t m_rec_count;
	uint32_t m_name_hash_table_offset;
	//VIRTFS_RECORD m_recs[];
} VIRTFS_HEADER;

typedef struct VIRTFS_RECORD
{
	uint32_t m_size;
	uint32_t m_offset;
	uint8_t m_compress_format;
	uint8_t m_crypt_format;
	uint8_t m_name_size;
	char m_name[VIRTFS_NAME_SIZE];
} VIRTFS_RECORD;

typedef struct VIRTFS_NAMEHASH
{
	uint16_t m_crc16_ccitt;
	uint32_t m_offset;
} VIRTFS_NAMEHASH;

typedef struct VIRTFS_PACKTABLE_RECORD
{
    uint32_t m_size;
    uint32_t m_offset;
} VIRTFS_PACKTABLE_RECORD;

typedef struct VIRTFS_PACKTABLE
{
    uint32_t m_rec_count;
    //VIRTFS_PACKTABLE_RECORD m_recs[];
} VIRTFS_PACKTABLE;
#pragma pack(pop)

#endif
